| Impact ID | 4298 |
| Impact Type | Competition |
| Study Type | Observational |
| Study Location | Field |
| Impact Description | Gambusia affinis outcompetes Crenichthys baileyi (the White River springfish) for habitat, becoming the dominant species and replacing C. baileyi in some habitats in a spring system in Nevada. |
| Reference | 119 |
| Cost | |
| Location | Nevada, USA |